Drone, Not Drones also uploaded a recording of Low performing "Do You Know How To Waltz" at Rock The Garden, to Soundcloud (it might be the same as the one hosted at The Current, I'm just listening to the Soundcloud thing now so I haven't compared):

SO - are they touring with any sort of piano / keyboard when playing "normal" shows?

yes they do, Steve the bass player actually plays keyboard (or piano on a keyboard to be exact) on a whole bunch of songs on this tour. And on the previous tour they were a foursome with Steve on bass aan Eric Pollard (drummer of RGC) on keys.
If there's any recording you need to hear, it's emmanuel's from Amsterdam. It hasn't made it to Archive.org yet though. It turned out so good. Mine is up there already of the same night, but it doesn't sound half as good.

Also, Low performed "Do You Know How to Waltz?" as an encore the night previous to Rock The Garden at a screening of "How To Quit Smoking" in Duluth. Strange how audience reactions differ so much from one show to the next. There's some footage of that encore at Cinema Purgatorio's facemook:https://www.facebook.com/photo.php?v=10151735333524343

Gepubliceerd op 5 jun 2013
Alan Sparhawk of Low went around on tour with other Chairkickers recording acts and fellow Duluth residents If Thousands and Haley Bonar. The Eye caught two performances: one night in Cambridge, MA at the Middle East and the following night upstairs at the AS220 in Providence, Rhode Island. Low fans will enjoy two brand new unreleased Low tunes "Everybody's Song" and "When I Go Deaf." (Look for Dan Littleton of Ida in the background trying to keep up with the song!)

By the way, here's a copy & paste of something Zak Sally posted to facemook:

this shit makes me CRAZY. thank god i don't make my living as a musician anymore, but that does not change the fact that SOMEONE (probably more than a couple someones) is making a huge chunk of change here, and it does not make its way down to, you know, the person/people who created the "content" (without whom you WOULD HAVE NOTHING TO SELL). and the whole argument of "well, it's better than everybody just getting it for free" is stone cold amoral bullshit. it might be the way the world is going, but that's not a free ride for thievery.http://thetrichordist.com/2013/06/24...-t-shirt-sale/

Somehow (un)related: A recording of Yo La Tengo's performance at Solid Sound Festival on June 22, 2013; is now up at nyctaper.com. I initially thought Alan Sparhawk had joined them onstage. Turns out I shamefully misinterpreted one of Alan's tweets.